<http://schema.org/query-input>
"required name=search_term"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.bulbs.com/Ballasts/2-Number_of_Lamps/Electronic/11.800-10%22_--_under_18%22-Length_(in)/1.800-1%22_--_under_2%22-Height_(in)/results.aspx>